Gigacore 16 days ago. link 2 points ▲ ▼Thanks for compiling the exercises and great to see you "learning-by-doing"! While your code work, there are a few that you can improve. For example, reversing string can be as simple as: const reverseStr = str => str.split('').reverse().join(''); Of course, this is ES6. But it would be minimal with ES5 as well. Cheers!